I read the post on the dreamhost KB and ran through the steps and completed my setup, but for some reason PHP isn’t recognizing the DOM extensions that I explicitly made sure to install. I get the following error:

Fatal error: Call to undefined function domxml_open_file() in /home/.queenie/sirianni/ericandlaura.com/guestbook.php on line 34

I am sure that my compiled PHP binary is being used to compile the file. Any ideas on what could be wrong?